Run node app with SSL on 443 port (on 80 is working)

Question

It's my first time when I try configure a server running on Amazon EC2.

I figured out how run my node app on 80 port but now I'm trying to run on 443 port with Letsencrypt SSL. Before to work on 80 port I added

sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 3000

and

sudo iptables -t nat -A OUTPUT -p tcp --dport 80 -j REDIRECT --to-ports 3000

and everything worked fine. But now after install Letsencrypt I try to do same thing but with 433 port instead 80 and it's not working.

Letsencrypt config automatically for me all files so now redirect from http to https is working fine and when my iptable is empty on https:// I see ubuntu default website. When I run lines mentioned above with 443 port app is still not working (browser can't even load anything). It's only working with http:/...:3000

I've added 443 port to Security Groups on EC2.

What I can do? Thanks.

Answer 1

You need to check your security group Inbound/Outbound rules, you need to see if port 443 is assigned to which host. A valid but dangerous configuration, just for testing, is allow everything on Inbound and Outbound, to see if its a problem on your Security Group.

Beyond that, you need to be sure if the binding port is listening. Are you using Amazon Linux?